egg protection

...10 to 50 marble-sized eggs in the mouth cavity until hatching. The male continues to protect the hatchlings in his mouth even after the young have begun to feed independently. In certain species of
banjo catfishes (Aspredinidae), the eggs are anchored to spongy tentacles on the underside of the female’s abdomen. Some female callichthyid catfish carry eggs on the abdomen only for fertilization;...